/Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/Rigs/RigHierarchy.h
Switches a multi parent element to a single parent. This sets the new parent's weight to 1.0 and disables weights for all other potential parents.
Returns true if changing the weight was successful
bool SwitchToParent ( [FRigBaseElement](API\Plugins\ControlRig\Rigs\FRigBaseElement) * InChild, [FRigBaseElement](API\Plugins\ControlRig\Rigs\FRigBaseElement) * InParent, bool bInitial, bool bAffectChildren, const [TElementDependencyMap](API\Plugins\ControlRig\Rigs\URigHierarchy\TElementDependencyMap) & InDependencyMap, [FString](API\Runtime\Core\Containers\FString) * OutFailureReason )